media-types 媒体类型 video html5

media-types 媒体类型 video html5

http://www.iana.org/assignments/media-types/media-types.xhtml
http://www.iana.org/assignments/media-types/application/mp4

 

 

http://www.iana.org/assignments/media-types/media-types.xhtml

 

Media Types

Last Updated
    2016-05-17
Registration Procedure(s)

    Expert Review for Vendor and Personal Trees.

Expert(s)

    Ned Freed (primary), Murray Kucherawy (secondary), Mark Baker (secondary), Bjoern Hoehrmann (secondary)

Reference
    [RFC6838][RFC4855]
Note

    Per Section 3.1 of [RFC6838], Standards Tree requests made through IETF
    documents will be reviewed and approved by the IESG, while requests made by
    other recognized standards organizations will be reviewed by the Designated
    Expert in accordance with the Specification Required policy. IANA will verify
    that this organization is recognized as a standards organization by the
    IESG.

Note

    [RFC2046] specifies that Media Types (formerly known as MIME types) and Media
    Subtypes will be assigned and listed by the IANA.

    Procedures for registering Media Types can be found in [RFC6838], [RFC4289], 
    and [RFC6657]. Additional procedures for registering media types for transfer via 
    Real-time Transport Protocol (RTP) can be found in [RFC4855].

    The following is the list of Directories of Content Types and Subtypes. If you wish to 
    register a Media Type with the IANA, please see the following for the online application:

    [Application for registration of Media Types]

    Other Media Type Parameters: [IANA registry media-types-parameters]
    Media Type Sub-Parameters: [IANA registry media-type-sub-parameters]

Available Formats

    XML
    HTML
    Plain text 

Registries included below

    application
    audio
    example
    image
    message
    model
    multipart
    text
    video

 

 

 

1

http://www.iana.org/assignments/media-types/application/mp4

 

(RFC 4337 published March 2006, RFC 6381 published August 2011, subtype last updated August 2011)

MIME media type name: application

MIME subtype name: mp4

Required parameters: none

Optional parameters: none

Encoding considerations: base64 IS generally preferred; files are
   binary and should be transmitted without CR/LF conversion, 7-bit
   stripping, etc.

Security considerations: See section 5 of RFC 4337.

Interoperability considerations: A number of interoperating
   implementations exist within the ISO/IEC 14496 community, and that
   community has reference software for reading and writing the file
   format.

Published specification: ISO/IEC 14496-1:2001.

Applications: Multimedia

Additional information:

   Magic number(s): none

   File extension(s): mp4 and mpg4 are both declared at
      <http://pitch.nist.gov/nics/>.

   Macintosh File Type Code(s): mpg4 is registered with Apple.

Person to contact for info: David Singer, singer&apple.com

Intended usage: Common

Author/Change controller: David Singer, ISO/IEC 14496 file format
   chair

 

 

 

 

https://www.base64-image.de/